Lubricating-bars for journal-bearings.



F. J. RANDALL. LUBRIOATING BARS FOB JOURNAL BEARINGS. APPLICATION FILEDMAR. 21, 1912.

1,081,930. Patented Dec. 16, 1913.

69557166165: 29' a: Jnuenw;

IT (I Randall OOLUMBIA PLAROURAFH I20.- WAIIIINO'TON, D. C-

UNITED STATES OFFICE.

FRANK J. RANDALL, 0F LOS ANGELES, CALIFORNIA, ASSIGNOR OF ONE-HALF TOGEORGE G. BAILEY, 0F LOS ANGELES, CALIFORNIA.

LUBRICATING-BARS FOR JOURNAL-BEARINGS.

Specification of Letters Patent.

Patented Dec. 16, 1913.

Application filed March 27, 1912. Serial No. 686,579.

To all whom it may concern Be it known that I, FRANK J. RANDALL, acitizen of the United States, and a resi dentof the city and county ofLos Angeles, State of California, have invented certain new and usefulImprovements in Lubricating-Bars for Journal-Bearings, of which thefollowing is a specification.

My invention pertains to lubricants or bearings, and it has particularreference to lubricating bars which are molded into the form of bars,and adapted to be applied in the bearings in contact with the shaft,whereby positive lubrication may be assured to every part of thebearing.

The invention provides a means for making a bar of lubricating compoundwhich may or may not have an exterior protecting casing one side of thebar being slightly concave, so that when the bar is secured to a shaftand the Babbitt metal is poured around the shaft in the ordinary way,the metal casing which supports the lubricating bar will prevent theBabbitt metal from creeping in between the edges ofthe protecting shelland cover the surface of the lubricator bar, which is in contact withthe shaft, all of which will now be set forth in detail.

In the accompanying drawing Figure 1 is a cross section of a journalbearing with the bearing equipped with my improved lubricating bars, andthe whole babbitted therein. Figs. 2 and 3 are end views of the bar, oneof them cased, and the other uncased. Fig. 4 1s a perspective view of aprotective case for the bar, and Fig. 5 is a perspective View of alubricating bar molded without a casing, and adapted to be applied to ashaft.

In constructing my invention I provide a suitable mold for the purposeof making a bar of any convenient width and thickness, and these may bemade of predetermined lengths, so that the bars of graphite moldedtherein may be especially adapted for various size shafts and length ofbox ing, or the mold may be of such length that the product may bevended in long bars, and

cut by the user to suit any length of journal bearing.

As will be seen by reference to Fig. 5, the lubricating bar 6 has one ofits faces, as at 7, concave so that it will fit a shaft against which itis applied, as shown in Fig. 1, or instead of having the bar rectangularin form, in cross section, as shown in Fig. 5, the edges thereof may beformed at an angle as shown at S, Fig. 3. so that when the concaved face9 is placed in contact with the shaft, as also illustrated in Fig. 1,the angled edges 8 will serve to hold the bar in place when the Babbittmetal 10, is poured around the shaft 14. I prefer, however, to make thebars in the form shown in Figs. 2 and 4, in which case I provide aprotective shell 11, having the inwardly-turned edges 12, the spacebetween the two edges 12 being designed to receive the lubricant whichis pressed therein, so as to form a concaved surface, as indicated at13, so that when the bar, thus made, is applied to the journal or shaftthe edges 12 will be held firmly against the shaft so that when theBabbitt metal is poured around the shaft the metal will not creep pastthe edges 12, and thus coat the contact surface of the lubricating bar.In order to prevent the Babbitt. metal from creeping past the edges ofthe bar which has no protective casing, the concaved face 7, Fig. 5,should be made of such curvature as to snugly fit against the shaft.

In applying my invention the bars, two or more of which are designed tobe applied at each hearing, are placed in position and wrapped, or tied,to the shaft, so as to hold them firmly in contact therewith when thebearing is ready to receive the babbitt. It is obvious that these barsmay each be as long as the width of the journal, or they may be cut inshorter lengths and staggered, so that the journal will thus have abearing against these bars at all points.

What I claim as new, is

In a bearing for axle boxes, a journal, a plurality of bars, eachcomprising a metallic sheath, U-shaped in cross section, the side Wallssloping toward each other, and open Signed in the city and county of Losat both ends, and graphite material or other Angeles, State ofCalifornia, April 1911, in suitable compound rigidly held Within the thepresence of Witnesses.

sheath by the sloping sides, said bars being FRANK J. RANDALL.longitudinally disposed, and Babbitt metal Witnesses:

Within the box to hold said bars against the H. D. HANsEoM,

journal. FRANK L. MILLER.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patenta Washington, D. C.

